3 Dogs have been poisened in Parque Las Heras (Buenos Aires)

there where 3 cases reported and immediately treated by an salguero vet, but unfortunately one already died! this is terrible as there is a person who wants the park "cleaned" of the dogs!they put rat poison and broken glass in meat and cheese, this causes horrible and painful deaths!please be careful or better do not go to the park and keep your dogs on the lead!please warn fellow dog owners!and parents with small children too!!!